Electrical multiple instrument system



Jan. 1, 1946. F. L. PHILLIPS ET AL 2,392,134

ELECTRICAL MULTIPLE INSTRUMENT SYSTEM Filed June 1, 1944 36heets-Shee't l H/VDEEN J. Pwu lPS Inventor 9 Q Wag/We? MB 1946- F. 1.. PHILLIPS ET AL 2,392,184

' ELECTRICAL MULTIPLE INSTRUMENT SYSTEM Filed June 1, 1944 3 Sheeqs-Sheet 2 Inventor I W 5 torneys J 1946- F. L. PHILLIPS ET AL 2,392,184

ELECTRICAL MULTIPLE INSTRUMENT SYSTEM Filed June 1, 1944 5 Sheets-Sheet 3 Inventor emf/WW 19% e];

Patented Jan. 1, 1946 cameraman MULTIPLE? sYs'rEM Finis L.-1 hillips, M er-a1 wellaTem andlAndrew Ll hillins, Tucson,

- The present invention appertains to and usefulimprovementsin-t he art of electric" music instruments and systems thereof; the" principal object here being to provideian electricarsystem which proposes a special connector and means for connecting a=-plurality of musical instruments, a loudspeaker an'd' 'a -microphone for orchestral reproduction with a harmonious effect of the utilized instruments.

An important object of the invention is to provide an electrical connector for connecting musical instruments, microphones and loud speakers in various required ways and wherein connections can :be quickly made and changed as the occasion demands.

Other objects and advantages of the invention will becom apparent to the reader of the following description.

In the drawings- Figure 1 is a diagrammatic view showing the connector having connected therewith, a microphone, a loud speaker and a guitar.

Figure 2 is a perspective view of the special connector.

Figure 3 is a cross section taken on the line 3--3 of Figure 2.

Figure 4 is a plan view of the contacts, contact strips and one type of connection.

Figure 5 is a plan view showing the contacts, contact strips and a second type of connection.

Figure 6 is a diagrammatic view showing the connector wired as shown in Figure 4 and accommodating the instrument as represented in Figure 1.

Figure '7 is a diagrammatic View showing the instrument employed with the connector as wired in Figure 5.

Figure 8 is a diagrammatic view showing the connector in multiple form, that is, extended to accommodate a multiplicity of instruments, this form being spacedly constructed in accordance with the wiring shown in Figure 4.

Referring to the drawings wherein like numerals designate like parts, it can be seen that broadly speaking, a guitar 5, a microphone 6, a loud speaker I and the improved connector 8 are shown in electrical connection.

The connector 8 is preferably constructed of a base 9 and a cover to, these sections being secured together by screws H, H.

The cover I0 is formed with electric plug prongreceiving openings l2 to accommodate the plugs of the several instruments, loud speaker and amplifier.

Figure 4 shows one modification of the connector. This view shows the elements; or" the connector- ,.whicli consists 01f one side of ar pair other'side of a second pain of aligned conductor strlps ll'lg I 83 lnlv'form: or: the-inventioni'tlie strips-"15, 1 were: come-area as sliown at 1.9; 7 The s'tr-ips 16, :18: have -:'opp6$'d plug prong-.3 contacts 20, 2|. There is a pair of opposed contacts ibG- tween the strips [1, I6 denoted by numerals 22, 23 and a third pair of contacts between the strips [5, ll denoted by numerals 24, 25. The pairs of contacts above stated are arranged under the openings l2 of the cover section ill (see Figure 2) and are accessible through these openings. The base section 9 is grooved to receive the strips H, l8, l5 and I6 and the contacts on these strips project upwardly and into the pockets l2 in the cover l0.

Figure 5 shows an arrangement whereby instead of having the contact strips l5 and I8 bridged, an auxiliary contact 23a is employed and is connected .by a strap l9a to the strip I80. Strips Ha, [5a, Ilia and contacts 20a, Zia, 24a, 25a and 22a corresponding to like elements of Figure 4 are employed in the same manner.

Figure 6 shows diagrammatically the use of the connector shown in Figure 4 and just how the instruments, the microphone and loud speaker are connected with the contacts thereof.

Figure 7 is a diagrammatic view showing the form of connector shown in Figure 5. This view showing the guitar, loud speaker and microphone plugged in.

Figure 8 is a diagrammatic view and this view shows a form of connector similar to Figure 4 on one side but provided with extensions for parallel connection on the other side.

In this form, strips [1b and l8b are aligned and in parallel relation to aligned strips |5b and IE1), it being observed that the strips 18b and i6b are considerably longer than the strips l8 and iii in Figure 4, this because of the provision for parallel connection for more instruments. The strip llb has contacts 25b and 22b thereon opposed to contacts 24b and 23b on the strips I51) and [6b. The balance of the strips I5b and l6b have a plurality of contacts Hi; and 20b, respectively, arranged thereon in longitudinally spaced manner. A number of instruments may be connected in parallel for use in unison.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing I M 2,392,184 a g from the spirit and scope of the invention as with the amplifier, said connector comprising 7 claimed hereinafter.

Having described the invention, what is claimed as new is: a p 1. In an arrangement for musical production I with cooperating tone and sound producing elements, such as musical elements and a micromeans for making series and parallel connections with said amplifier by means of two pronged Y plugs connected with the aforesaid elements, said phone, and with an amplifying device and loud speaker, a connector for rapid change of connec- I tion of said tone'and' sound producing elements Lwith the amplifier, said connector comprising means consisting of pairs of contact springs, with the members of each pair connected with contact strips arranged on opposite sides with at least one direct connection between adjacent strips and at least one independent auxiliary contact cross connected with contact strips connected with the members of the opposite side.

means for making series and parallel connections I with said amplifier by means of two pronged.-;; plugs connected with the aforesaid elements,""'

said means consisting of pairs of contact springs,

with the members of each pair connected with I contact strips arranged on opposite sides with at least one direct connection between adjacent strips and at least one cross connection between the strips of members of the pair arranged on opposite sides. 4 r I I 2. Inan arrangement for musical production with cooperating .toneand sound producing elements, such as, musicalelements and a micro- I phone and with an amplifying device and loud I speaker, a connector for rapidchange of connectionof said tone and soundproducing elements 3. In an arrangement as specified in claim 1,

pairs of contacts adopted for two prong plug connections with the tone and sound producing instruments and the amplifier, with contact strips, arranged on opposing sides, connecting in parallel a plurality ofcontact members of the pair on one side, forming a group, a second inde- I pendent strip on the same side, a further group formed by a contact strip onthe opposing side and connecting thecontacts of the pairs on the other side, at least one separate strip' on the said opposing side and at least one cross connection between strips on opposite sides.

FINIS L. PHILLIPS. ANDREW J. PHILLIPS. 

